Extra Strength Prebiotic Fiber Gummies from Vitamatic are a fun and tasty way to support GI health. Each serving delivers 7 grams of soluble fiber as fructooligosaccharides (FOS) sourced from healthful beets. FOS is also considered a prebiotic type of fiber which nourishes beneficial bacteria to help them thrive. This supports a robust microbiome for better digestive health. Natural blackberry, peach and strawberry flavors.